CAMBRIONIX OEM-U8S User manual

OEM-U8S
User Manual
© 2023-02 Cambrionix Ltd. All rights reserved. EN

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1. Table of Contents
1. Table of Contents 2
2. Your OEM-U8S at a glance 4
2.1. Key Features 4
3. Safety 5
3.1. Signal word panel 5
3.2. Safety alert symbol 6
3.3. Pictograms 6
3.4. Product modification 6
3.5. Power supply 7
3.6. Storage and Installation 7
3.7. OEM 9
4. Getting Started 10
4.1. Unpacking your product 10
4.2. What's Included 10
4.3. Connecting to a Host 10
4.4. Charging 10
4.5. Cables 11
4.6. Connecting the OEM-U8S to the Power Supply Unit using Spade
Connectors 12
4.7. Registration 12
4.8. Help and Support 12
5. Using your OEM-U8S 13
5.1. Using without connecting to a host 14
5.2. Using when connected to a host 14
5.2.1 Connecting the Hub to a host computer 14
5.2.2 Charging 14
5.2.3 Data Transfer 15
5.2.4 Communication Interface and Protocol 15
5.2.5 Connecting U8S for API 15
5.3. Managing Ports & Your OEM-U8S 17
5.3.1 Port Modes 17
5.3.2 Switching port modes 17
5.3.3 Charging Profiles 18
5.3.4 Firmware 18
5.4. Software 21
5.4.1 Installing Software 21
5.4.2 LiveViewer 22
5.4.3 Cambrionix API 24
5.4.4 Updating Software 24

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5.4.5 Removing Software 25
5.4.6 Command Line Instructions (CLI) 26
5.5. Scalability 27
5.6. Cooling the OEM-U8S 28
5.7. Cleaning your OEM-U8S 29
6. Product Specifications 30
6.1. Input Power Requirements 30
6.2. Output Power 30
6.3. Rail value limits 30
6.4. Physical specifications 30
6.5. Consumables and Placing Orders 31
7. Troubleshooting 33
7.1. Common troubleshooting tips 33
7.2. Logging through LiveViewer 33
7.3. Hardware Failure 33
7.4. Device connection 34
7.5. Hub connection issues 35
7.6. Using with a headless system 36
7.7. Software troubleshooting 36
8. Returns and Damaged Products 37
8.1. What if my order arrives with an issue? 37
8.2. What happens after I have requested a Return? 37
9. Compliance and Standards 38
10. Terms and Conditions 39

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2. Your OEM-U8S at a glance
The OEM-U8Sprovides 10W of charging power to each of its USB 2.0 Type-A ports, allowing mobile
devices to be charged quickly, safely and reliably. All ports can be controlled using Cambrionix
software to enable charging and data transfer while monitoring important port and device
information.
The OEM-U8S can charge attached USB devices without using a local computer, and our intelligent
charging algorithm allows almost any device to be charged at its optimum rate (up to 2.1A). The
firmware can be updated to enable new charging profiles, ensuring the OEM-U8S can charge the
latest devices. It is ready to charge out-of-the-box and sync devices when attached to a host
computer.
When a local (host) computer is connected, the host can control the operation of the ports using
available software. Device charging and synchronisation can be monitored through
Cambrionix’s LiveViewer App, the Application Programming Interface (API) or Command Line
Interface (CLI). Cambrionix’s free monitoring and control software can be downloaded from
www.cambrionix.com/software
You can download the latest version of this manual and all product user manuals from our website at
the following link. www.cambrionix.com/product-user-manuals
2.1. Key Features
Up To
480(Mbps)
per Port
Up To
2.1A
per Port
Up To
32
Devices
Transfer Data
Seamlessly Power Scalability
Each high-speed port can
transfer data up to 480
(Mbps)
Each port can charge
devices up to 2.1A
(10W)
Up to 32 devices can be
connected at once using
multiple hubs

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3. Safety
This user manual is for informational purposes only, it contains information for the start-up and
operation of this product. Note: the contents and the product described are subject to change
without notice. To avoid injuries and damage, observe the safety instructions in the user manual.
This manual has been arranged to follow the IEC/ICEE 82079-1 standard. This is to facilitate the easier
understanding and location of information relating to the OEM-U8S. Any errors or omissions can be
reported using our support ticket system (seeHelp and Support). This way, any issues that are
discovered can be acted on quickly and we can update the documentation to reflect this.
Understanding and observing the instructions in this user manual are prerequisites for hazard-free
use and safety during operation. This user manual cannot cover all possible applications. If you would
like additional information or if problems arise that are not sufficiently addressed in this manual,
please ask your distributor or contact us directly using the means preferred, which are located on the
back cover of this manual.
CAUTION
Personal Injury and Damage to the product
Always observe the safety instructions in this user manual
3.1. Signal word panel
Depending on the probability of serious consequences, potential dangers are identified with a signal
word, the corresponding safety colour, and if appropriate, the safety alert symbol.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, may result in moderate or
minor (reversible) injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in damage to the
product and its functions, or to property in its proximity.

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3.2. Safety alert symbol
Use of the safety alert symbol indicates a risk of injury.
Observe all measures that are marked with the safety alert symbol in order to avoid injury
3.3. Pictograms
These symbols will be used throughout this documentation to alert to any potential dangers or any
actions that must be taken.
Warning Signs
Electrical hazard Fire Hazard
Mandatory action signs
Read operating instructions Mandatory regulation
3.4. Product modification
Cambrionix products are designed and manufactured to meet the requirements of UK and
international safety regulations. Modifications to the product could affect safety and render the
product non-compliant with relevant safety standards, resulting in injury or damage to the product.
CAUTION
An electric shock or personal injury may occur
Do not modify the product in any way.
Do not dismantle the product.

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CAUTION
Fire, or personal injury may occur
Do not obstruct air vents on the product.
Do not cover the product in or place near combustible material.
CAUTION
Damage to your product may occur
Do not bend or compress any part of the product.
3.5. Power supply
This section describes the safety precautions you must follow when using the external power supply.
CAUTION
An electric shock or personal injury may occur
Do not use a damaged power cord or plug, or a loose power socket.
Do not touch the power plug with wet hands.
Do not allow liquids to come into contact with the unit or power supply.
CAUTION
Damage to your product may occur
Do not short circuit the Power Supply Unit (PSU) supplied with your product.
Do not disconnect the power cord while the product is being used.
Do not bend or pull the power cord with excessive force.
Do not use a power supply that exceeds the power supply specifications
within this manual
3.6. Storage and Installation
This section describes safety precautions you must follow when installing and storing your OEM-U8S.

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CAUTION
An electric shock or personal injury may occur
Do not place the power cord near heat sources.
Connect the plug only to an earthed socket.
CAUTION
Damage to your Cambrionix product may occur
Operate the product only in an environment where the ambient
temperature is inside the operating temperature range.
Operate the product only in an environment where the relative humidity is
inside the operating range.
Be careful not to leave the power cord underneath a heavy object.
CAUTION
Overheated power sockets may cause a fire
Do not overload the power socket that your hub is connected to.
Insert the power plug all the way into the socket so that it is not loose.
CAUTION
Overloading the brackets may cause failure
The rack brackets for all our products are not designed to be used in a mobile
application, bracket failure could occur if the units are not supported fully e.g
Shock during road transport.

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3.7. OEM
CAUTION
Personal injury may occur
Cambrionix OEM modules have sharp edges, corners and suitable protective
equipment must be worn whilst handling. components.
CAUTION
Damage to your Cambrionix OEM module may occur
When mounting a Cambrionix OEMmodule, all mounting holes should be used
with appropriate spacers, screws and a torque level of 1.1Nm.
Cambrionix OEM modules are susceptible to Electrostatic Discharge (ESD).
OEM modules should be handled in an ESDsafe area.
This product is not reverse-polarity protected. The power connections
MUSTbe connected correctly. If in doubt, please contact Cambrionix.

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4. Getting Started
This manual provides a reference for end-users installing for the first time and using their hub
afterwards. As well as a guide for product safety-related information.
The OEM-U8S is intended to be used in an indoor static environment in which the environment falls
within the tested specifications to provide charge, sync and management functionality. Please see
the physical specifications section of this manual for information on the environment specifications.
4.1. Unpacking your product
When you have received your product, please check the packing slip inside the box to ensure all
contents and quantities are correct before opening. This is to avoid retesting and repackaging any
items that are not required.
When opening the packaging, use a suitable method to open the box i.e, do not use a knife. This is to
ensure the product is not damaged.
CAUTION
Personal Injury and Damage to the product
There will be a label on the hub advising you to read the User manual before
use. This will need to be removed before use as it may be covering host ports,
vents etc.
4.2. What's Included
lOEM-U8S Hub
4.3. Connecting to a Host
Once the power is connected, connect the OEM-U8S to your host system using a USB 2.0 Type-B
cable. Using an incorrect host cable may result in the hub and all subsequent ports not being
recognised by your host.
Please note that USB specifications require a minimum 100 mA charge current to be available during
data transfer. As indicated in above, if the attached device has a BC1.2 compliant CDP port, the
device can draw up to 2.1A whilst transferring data.
4.4. Charging
Your OEM-U8S will allow your device to charge at the maximum rate possible up to 2.1A. The way that
charging takes place is the OEM-U8S will provide the device with a capability to charge and the
devices USB charging controller will determine the maximum amount of charge it wants to draw
down.

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Although a maximum charge rate of 2.1A is possible, the device itself determines the exact rate and
as such you may not see the maximum amount of charging on every device type that is connected.
4.5. Cables
Some USB cables are data transfer only, and some are power delivery only. There are also options
that can handle both tasks. Be sure to verify a cable’s abilities before purchasing it and select a cable
which can handle the speeds and power transfer that you require. We would advise using the cable
that was provided with the device to connect to our hubs.

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4.6. Connecting the OEM-U8S to the Power Supply Unit using Spade
Connectors
Having ensured the output voltage of the DC power supply is 5V, and certainly does not exceed 5.6
Vdc, connect the PSU to the OEM-U8S using insulated copper cables of no less than six mm2 cross-
section and no longer than 150 mm. Longer cables or smaller cross-sections are likely to cause a
voltage drop across the cable and improper board operation.
With the mains power supply disconnected, the PSU should be connected to the input spade
terminals on the OEM-U8S using the cable (described above) terminated (at the OEM-U8S end) with
crimp connectors. The positive voltage spade terminal is closest to the OEM-U8S board edge, and
Ground (GND) is marked on the OEM-U8S board close to the innermost spade terminal.
Taking appropriate safety precautions, turn the mains supply on. Periodic inspection should be made
to power supply cables and any USB cables for any signs of damage. If any damage is found then
replace damaged cord before further use.
4.7. Registration
You may register your product at www.cambrionix.com/product-registration
4.8. Help and Support
FAQs and help can be found on the Help page here
lwww.cambrionix.com/help_pages/help.
You can raise a support ticket for more in depth support here
lhttps://cambrionix.atlassian.net/servicedesk/customer/portals
You can also download any of our manuals and keep up to date at the link here
lwww.cambrionix.com/product-user-manuals
When contacting support, please supply the product information for the hub in question. This can be
found on the Device Information Plate which is either on the underside or back of the unit.
Providing serial and Purchaseorder numbers, can help identify your specific product and speed up
the process.

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5. Using your OEM-U8S
In this section, you can find information using your hub in charge or sync application. You can also
find information on managing your hub, changing port modes, connecting multiple hubs to one host
and using Cambrionix Software.

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5.1. Using without connecting to a host
When the Hub is switched on and is not connected to a local host computer it is automatically
configured to charge devices using its intelligent charging algorithm. Connect the devices to be
charged to any of the available ports (not the Host Port) using USB - compliant cables.
Once the devices are connected, the algorithm will detect the highest charge rate allowable for each
attached device. Charging at the optimum rate (up to 2.1)A specified by the manufacturer will
commence once profiling is complete. Depending on the state of charge of the device attached, this
may take tens of seconds.
5.2. Using when connected to a host
5.2.1 Connecting the Hub to a host computer
Connect the OEM-U8S to your host system using a USB 2.0 Type-B cable. Using an incorrect host
cable may result in the hub and all subsequent ports not being recognised by your host.
5.2.2 Charging
When the Host Port is connected to a local computer, the hub defaults to Sync mode and charge
currents are determined according to USB Implementers Forum (USBIF) Super-Speed USB3
specifications. If the attached device complies with USB-IF Battery Charging specification BC1.2 and
supports Charging Downstream Port (CDP), the hub can provide high-speed charging at 2.1A. If the
connected device does not comply with BC1.2, the charge current will be limited to 500 mA in
compliance with USB specifications.
If you wish to limit the charging to your devices whilst connected to your host system then you can
disable CDP. You can disable CDP through NVRAM settings either by going through the advanced
settings and turning "Sync charge" off or through the API and disabling it via code. For example, the
instructions would be below using the command line.
The CLI commands for turning off the sync charge options, with a 1 or 0 per port.
settings_unlock
settings_reset
settings_set sync_chrg 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
settings_set alt_sync_chrg 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
reboot
This can also be done via the API if this is easier. Just supply that string (joined with \n) like:
cbrxapi.cbrx_connection_set(handle, "settings", "settings_unlock\nsettings_reset\n-
settings_set sync_chrg 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\nsettings_set alt_sync_chrg 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\nreboot")

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Note that settings_reset clears any previous settings, so if you need to retain something else, it would
be better to issue settings_display first, which gives you the entire settings which you can then
modify and re-issue in entirity.
5.2.3 Data Transfer
If you wish to transfer data, change applications, restore or update your mobile device, a data
connection to a local host computer is required. The hub is compatible with macOS®, Windows™ and
Linux® operating systems and can transfer data between these operating systems and many mobile
operating systems such as iOS™ and Android™.
In order to transfer data, connect the host port to your local (host) computer using a USB 2.0 Type-B
compliant cable. Any devices connected to the hub will now appear as if they were connected to the
host computer’s USB port.
5.2.4 Communication Interface and Protocol
The OEM-U8S appears as a virtual COMport (VCP). On Microsoft Windows™, the system will appear
as a COM port, the COMport number can be found in device manager. On macOS®, a device file is
created in the / directory. S is an alpha-numeric serial string unique to each device
/dev/tty.usbserial S
Devices incorporate a USB to UART converter IC from FTDI International. On Windows 7 or later, a
driver may automatically be installed (if Windows is configured to download drivers from the internet
automatically). If this is not the case, or if a Mac® or Linux® platform is used, the driver may be
downloaded from www.ftdichip.com. The VCP drivers are required. For Linux® or Mac computers, the
default OS drivers should be used.
The default communications settings are as below, ANSI terminal emulation should be selected.
Communication setting Value
Number of bits per second (baud) 115200
Number of data bits 8
Parity None
Number of stop bits 1
Flow control None
5.2.5 Connecting U8S for API
In order for the U8S to work correctly with the API there must be a USB Type-A to Mini-B cable that
connects the control or update port to an expansion port on the same product. This is in addition to
the USB cable that connects the host port to the machine running the API.

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5.3. Managing Ports & Your OEM-U8S
Each port on your OEM-U8S can be managed either individually, or all together. You can turn the ports
off and on, change the port mode, or change various other settings applicable to the OEM-U8S more
information can be found in the LiveViewer section under NVRAMsettings. This can be done through
LiveViewer, the CLI or by connecting to the hub via the API.
5.3.1 Port Modes
Charge Turn specific ports or the whole hub to charge only mode (no data
connection, hub emulates an OEMcharger)
Sync Turn specific ports or the whole hub to sync mode
Biased Detect the presence of a device but it will not sync or charge it
Off Turn specific ports on or off or switch the whole hub on or off (no power and no
data channels open, mimics unplugging the device)
5.3.2 Switching port modes
You can switch between port modes by using LiveViewer, the CLI or by connecting to the hub via the
API. If you switch a port off then this will stop any connection taking place to the USBdevice and
would mimic unplugging the USB device completely from the host system.
If you are in Sync mode and then switch to Charge mode the USB device will disconnect briefly whilst
the profiling process takes place. Once the profiling has taken place, and a charging profile is
selected, the device will then draw a charge rate, which will be defined by the charging controller
within the USBdevice. The charging profile will limit the maximum amount that the device is able to
draw.
If you are in Off or Charge mode and switch to Sync mode the USB device will disconnect briefly
whilst a data connection is opened, the USBdevice will then become available to the host as if the
USB device is connected directly to the host, and will be able to sync data at a maximum rate of 480
(Mbps). The OEM-U8S will also charge the device whilst connected. It is impossible to have a data
connection to a USBdevice without any power negotiating, you can reduce the charging rates
available by disabling CDP (Charging downstream port).
You can disable CDPthrough NVRAMsettings either by going through the hub settings and turning
"Sync charge" off or through the APIand disabling it via code. For example, using the command line,
the instructions would be as below.
settings_unlock
settings_set sync_chrg 0000000000000000

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5.3.3 Charging Profiles
To ensure attached devices charge at their optimum rate, our smart USB hubs come with the below
intelligent charging profiles built in:
0 Intelligent charging algorithm which will select a profile 1-6
1 2.1A (Apple)
2 BC1.2 Standard (this covers the majority of Android™ phones and other devices)
3 Samsung
4 2.1A (Profile 1 but with a longer timeout)
5 1.0A (Typically used by Apple)
6 2.4A (Typically used by Apple)
5.3.4 Firmware
The firmware can be kept up to date using our LiveViewer software. As part of delivering an easy user
experience, our LiveViewer application is now a set-and-forget solution. The LiveViewer application
will discover your USB hub’s firmware and present an update for you.
To update the firmware, first, go to the firmware section of LiveViewer. Here you can see the available
Firmware versions to install to the hub.
The current firmware version on the hub is displayed in the firmware section alongside the hub's
name. This will appear red if a newer version is available or green if it is the most up to date.

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To install the firmware onto the hub click the hub(s) connected that you want to update, the latest
firmware will be automatically selected, if you wish to change the firmware version you are updating
to then this can also be done. Once selected press the update button at the top and the update will
commence.
CAUTION
Your OEM-U8S may not function correctly
Do not downgrade firmware onto a new product
CAUTION
Your Cambrionix Firmware may get corrupted
Do not interrupt the Firmware update process.
Do not disconnect the power during the update process.

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CAUTION
Your Cambrionix Hub may not be visible or become unresponsive
If you have older hardware with Firmware version number lower than 1.83 then the
hub may not be compatible with the Cambrionix API and will need to be updated to
the latest version of Firmware using the Command Line Updater which can be
downloaded and installed from the following link.
https://www.cambrionix.com/firmware
CAUTION
A new version may be available
Ensure you have the latest version of Firmware installed on your hub. These updates will often
contain new features, fixes for bugs and performance improvements